Longitudinal rod adjustment



T. I. GORMAN.

VLONGITUDINAL ROD ADJUSTMENT.

APPLICATION FILED 'DEC'.29, i919;

. PatentedJune 6, 1922; I

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narran smits THOMAS J. GORIVIAN, OF PHILADELPHIA, PENNSYLVANIA.

IAONGITUDINAL ROD ADJUSTMENT.

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Specification of Letters Patent. .Patented June 6 1922.

Application led December 29, 1919. Serial No. 348,014.

ment, of which the following is a specifi-- cation.

In many instances, iioi example, iii-the case of the brake-gear oi automobiles, it is necessary to adjust the length of rods connecting other parts or elements by means ofV yokes or shackles and transmitting motion between them. j

The principal object of the present invention is to provide a durable, simple, reliable and comparatively inexpensive longitudinal adjustment for rods by which their length can be accurately changed without detaching their yokesor shackles from the parts which they connect and by a simple adjustment of rotation.

Other objects oi" the invention will appear from the following description of the invention which latter will be claimed at the end hereof, but first described in connection with the accompanying rdrawings forming part hereof and in which4 v j Figure l, is a side view, partly in section, oit longitudinal adjustments applied to a rod, connecting elements or parte of an automobile brake gear.

Figs. 2 and 3, are respectively a sectional and a side view, drawn to an enlarged scale, and illustrating a longitudinal rod adjustment of' the invention.

Fig. 1l, a top or plan view of one part of the adjustment, and

Fig. is an end view of another part of the adjustment.

"in the drawings l, is an externally cylindrical tubular head provided with a contracted neck or groove Q, and forming part of or connected with a fork, yoke or shackle 3. 4, is a nut externally polygonal or otherwise adapted to accommodate a wrench or spanner and it is internally cylindrical and` of' two diameters. The portion of larger internal diameter is mounted on the hea-d l, and provided at the end of the nut with an inwardly extending flangel 5, engaging the neck 2. The portion of the nut 4, of less internal diameter may be called an extension and is internally threaded or tapped and this tapped or threaded extension is of less diameter than the internal chamber of the tubular head l. oi largerA internal diameter is longitudinally split as at 6, so that jaws, formed by the splits can be bent apart and then pressed together in order to get the nut onto the head l, with its internal flange 5, in the neck or groove 2.

The rod 7, is threaded and the threaded portion is of such diameter that it may pass l.

freely through the bore or opening in the head l, and engage the internally threaded portion of the nut 4t; it being remembered that the diameter oi the bore of the head 1, is larger than the diameter of the threaded opening in the nut 4.

ln use the nut et, may be turned one way or the other to shorten or lengthen the rod connection longitudinally and this can be done with the greatest accuracy and without untastening any of the forks, shackles, 0r other connections 3. 4The jam-nuts 8, serve to prevent accidental shifting of the adjustnient and they are of course backed oii' when an adjustment is made.

The fork 3 in combination with the tubular shackle and nut insures exposure oi the end ot' the rod 7, and this is important in the case of the brake gear of automobiles for two reasons, first, it clearly exposes the end of the rod and so prevents the rod 'from being run into the shackle pin which would The portion of the nut 4,

interrupt the-adjustment, and second, it per- THOMAS J. GORMAN. 

